Chickadoos often spawn from nests with Hen Hens and to a lesser extent, Roostros. They, along with Hen Hens, Carrots and Pogofruits, are the most common resources available to the player and are one of the first types of Chickadoos (and by extension, Hens) the player ever encounters.
Chickadoos can be produced domestically in a coop by a Hen Hen if it is in the presence of a Roostro, and will itself grow up into a Hen Hen or - more rarely - a Roostro. Until it grows up, Slimes will not eat it.
Chickadoos of all varieties will never be eaten by slimes. Some believe this is because slimes are too kind-hearted to do such a thing. Others believe it's because chickadoos don't yet have enough meat on their bones.
Chickadoos are baby chickens that will eventually grow into a hen hen or more rarely, a roostro.
On the Ranch:
Keep chickadoos in a safe place and they'll eventually grow into a Hen Hen or Roostro.
- A chickadoo is also required for the achievement "You... Monster!" in which you must throw a chickadoo into an Incinerator.
- Hen Hens spawn frequently in The Overgrowth; so it is not recommended to continue breeding them for Chickadoos once it is unlocked.